Olloy-on-Viroin (in Walloon Ôlwè ) is a section of the common Belgian of Viroinval located in Walloon region in the Province of Namur.

It was a commune with whole share before the fusion of the communes of 1977.

Protohistoric fortifications there were discovered.

External bonds

• Archaeological excavations with Olloy-on-Viroin

• Seen Wikimapia of the site of excavations
• Site to get information
• school Voyage to Olloy-on-Viroin in 2005
• school Voyage to Olloy-on-Viroin in 2006